Well what if we want to check for more than one condition, perhaps if one of a couple different conditions are true? What if we want to test if the length is 1'-0' or 2'-0' or perhaps within an acceptable range of values? What if we want to check if our length is less than a certain length, or greater than a certain length? Note the opening parenthesis, then the test followed by a comma, then the result if true followed by another comma, the result if false and then finally a closing parenthesis. In the example below, if the Width = 1'-0', then the result will be 1', if not the result will be 2'. Take for example dimensional analysis, if a length parameter meets this condition, then do this or do that. The IF statement can be leveraged to evaluate if a range of conditions are true. Probably the most powerful instrument you can employ in the parametric toolset. Successful Revit content hinges on well written formulas that empower our models to morph as our designs evolve. The parametric nature of Revit enables us to model our buildings with incredible detail and flexibility.

Developing content to represent all their variations can at times seem impossible. The elements and equipment that go into them, even more complicated. Let's face it, the process of engineering a building is extremely complex.

Revit if then formula